PuSH - HMGU Publikationen https://push-zb.helmholtz-munich.de PuSH - Publikationen-Server des Helmholtz Zentrums München de-de <![CDATA[El-Faramawy, N.* et al. Preliminary study of lithium tetraborate doped with Cu and in for external dosimetry. Appl. Radiat. Isot. 191:110533 (2023)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=66589&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=66589&la=de Tue, 29 Nov 2022 00:00:00 +0000 <![CDATA[Woda, C. et al. Luminescence dosimetry for evaluation of the external exposure in Metlino, upper Techa River valley, Southern Urals, Russia: Analysis of new results. Appl. Radiat. Isot. 193:110618 (2023)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=67181&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=67181&la=de Mon, 16 Jan 2023 00:00:00 +0000 <![CDATA[Mubark Ebrahim, A.* et al. PIXE as a complement to ICP-OES trace metal analysis in Sudanese medicinal plants. Appl. Radiat. Isot. 90, 218-224 (2014)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=31273&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=31273&la=de Wed, 14 May 2014 00:00:00 +0000 <![CDATA[Leopold, K. et al. Inventory and geochemical host phases of natural radionuclides in tin mining materials from Nigeria. Appl. Radiat. Isot. 67, 926-930 (2009)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=259&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=259&la=de Thu, 10 Sep 2009 00:00:00 +0000 <![CDATA[Meisenberg, O. & Tschiersch, J. Online measurement of unattached and total radon and thoron decay products. Appl. Radiat. Isot. 67, 843-848 (2009)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=2089&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=2089&la=de Thu, 10 Sep 2009 00:00:00 +0000 <![CDATA[Gerstmann, U. Comment on "Sequential determination of Pu and Am radioisotopes in environmental samples; a comparison of two separation procedures" by R. Jakopic, P. Tavcar and L. Benedik, Appl. Radiat. Isot. 65 (2007) 504-511. Appl. Radiat. Isot. 66, 332-333 (2008)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=4162&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=4162&la=de Tue, 11 Mar 2008 00:00:00 +0000 <![CDATA[Thiessen, K.M.* et al. Improvement of modelling capabilities for assessing urban contamination: The EMRAS Urban Remediation Working Group. Appl. Radiat. Isot. 66, 1741-1744 (2008)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=2296&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=2296&la=de Mon, 15 Dec 2008 00:00:00 +0000 <![CDATA[Wershofen, H.* et al. An inter-laboratory comparison of low-level measurements in ground-level aerosol monitoring. Appl. Radiat. Isot. 66, 737-741 (2008)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=2373&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=2373&la=de Thu, 11 Sep 2008 00:00:00 +0000 <![CDATA[El-Faramawy, N.A. Comparison of gamma- and UV-light-induced EPR spectra of enamel from deciduous molar teeth. Appl. Radiat. Isot. 62, 191-195 (2005)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=3695&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=3695&la=de Tue, 01 Feb 2005 00:00:00 +0000 <![CDATA[El-Faramawy, N.A. Estimation of radiation levels by EPR measurement of tooth enamel in Indian populations. Appl. Radiat. Isot. 62, 207-211 (2005)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=3696&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=3696&la=de Tue, 01 Feb 2005 00:00:00 +0000 <![CDATA[Regulla, D.F. ESR spectrometry: A future-oriented tool for dosimetry and dating. Appl. Radiat. Isot. 62, 117-127 (2005)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=323&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=323&la=de Tue, 08 Mar 2005 00:00:00 +0000 <![CDATA[Romanyukha, A.A.* ; Schauer, D.A.* ; Thomas, J.A.* & Regulla, D.F. Parameters affecting EPR dose reconstruction in teeth. Appl. Radiat. Isot. 62, 147-154 (2005)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=4544&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=4544&la=de Mon, 14 Mar 2005 00:00:00 +0000 <![CDATA[Wieser, A. et al. The 3. International intercomparison on EPR tooth dosimetry: Part 1, general analysis. Appl. Radiat. Isot. 62, 163-171 (2005)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=1503&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=1503&la=de Tue, 01 Feb 2005 00:00:00 +0000 <![CDATA[Veronese, I.* et al. Influence of the chemical form on the plasma clearance of ruthenium in humans. Appl. Radiat. Isot. 60, 7-13 (2004)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=1812&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=1812&la=de Mon, 02 Feb 2004 00:00:00 +0000 <![CDATA[Veronese, I.* et al. A re-evaluation of the biokinetics of zirconium in humans. Appl. Radiat. Isot. 58, 431-439 (2003)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=10350&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=10350&la=de Wed, 30 Jul 2003 00:00:00 +0000 <![CDATA[Yoschenko, V.I.* ; Kashparov, V.A.* ; Protsak, V.P.* & Tschiersch, J. Autoradiographical methods for the assessment of radionuclides in hot particles on filter samples. Appl. Radiat. Isot. 58, 95-102 (2003)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=22140&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=22140&la=de Wed, 05 Feb 2003 00:00:00 +0000 <![CDATA[Rosner, G. & Winkler, R. Nuclide-dependent local and collector surface effects in samling of radioactive deposition to ground. Appl. Radiat. Isot. 55, 823-829 (2001)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=21803&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=21803&la=de Mon, 31 Dec 2001 00:00:00 +0000 <![CDATA[Wieser, A. ; El-Faramawy, N.* & Meckbach, R. Dependencies of the radiation sensitivity of human tooth enamel in EPR dosimetry. Appl. Radiat. Isot. 54, 793-799 (2001)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=10349&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=10349&la=de Mon, 31 Dec 2001 00:00:00 +0000 <![CDATA[Regulla, D.F. From dating to biophysics: 20 years of progress in applied ESR spectroscopy. Appl. Radiat. Isot. 52, 1023-1030 (2000)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=21282&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=21282&la=de Sun, 31 Dec 2000 00:00:00 +0000 <![CDATA[Romanyukha, A.A.* ; Desrosiers, M.F.* & Regulla, D.F. Current issues on EPR dose reconstruction in tooth enamel. Appl. Radiat. Isot. 52, 1265-1273 (2000)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=21283&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=21283&la=de Sun, 31 Dec 2000 00:00:00 +0000 <![CDATA[Wieser, A. et al. Comparison of sample preparation and signal evaluation methods for EPR analysis of tooth enamel. Appl. Radiat. Isot. 52, 1059-1064 (2000)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=21353&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=21353&la=de Sun, 31 Dec 2000 00:00:00 +0000 <![CDATA[Jessen, K.A.* ; Shrimpton, P.C.* ; Geleijns, J.* ; Panzer, W. & Tosi, G.* Dosimetry for optimisation of patient protection in computed tomography. Appl. Radiat. Isot. 50, 165-172 (1999)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=20776&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=20776&la=de Fri, 31 Dec 1999 00:00:00 +0000 <![CDATA[Rossa, L.A.R. da* ; Regulla, D.F. & Fill, U.A. Reproducibility study of TLD-100 micro-cubes at radiotherapy dose level. Appl. Radiat. Isot. 50, 573-577 (1999)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=20775&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=20775&la=de Fri, 31 Dec 1999 00:00:00 +0000 <![CDATA[Rosner, G. ; Hötzl, H. & Winkler, R. Continuous Wet-only and Dry-only Deposition Measurements of 137Cs and 7 Be: an Indicator of their Origin. Appl. Radiat. Isot. 47, 1135-1139 (1996)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=20750&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=20750&la=de Tue, 31 Dec 1996 00:00:00 +0000 <![CDATA[Regulla, D.F. ; Göksu, H.Y. ; Vogenauer, A. & Wieser, A. Retrospective dosimetry based on egg shells. Appl. Radiat. Isot. 45, 371-373 (1994)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=39996&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=39996&la=de Sat, 31 Dec 1994 00:00:00 +0000 <![CDATA[Romanyukha, A.A.* ; Regulla, D.F. ; Vasilenko, E.K.* & Wieser, A. South ural nuclear workers: Comparison of individual doses from retrospective EPR dosimetry and operational personal monitoring. Appl. Radiat. Isot. 45, 1195-1199 (1994)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=39993&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=39993&la=de Sat, 31 Dec 1994 00:00:00 +0000 <![CDATA[Barabas, M. ; Walther, R. ; Wieser, A. ; Radtke, U. & Grün, R. Second Interlaboratory-Comparison Project on ESR Dating. Appl. Radiat. Isot. 44, 119-129 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=19683&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=19683&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Feist, H. ; Regulla, D.F. & Wieser, A. Is Alanine/ESR Dosimetry Now on Alternative to Ferrous Sulphate Dosimetry?. Appl. Radiat. Isot. 44, 47-51 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=20474&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=20474&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Feist, H. ; Regulla, D.F. & Wieser, A. Is alanine/ESR dosimetry now an alternative to ferrous sulphate dosimetry?. Appl. Radiat. Isot. 44, 47-51 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=40309&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=40309&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Nette, H.P. ; Onori, S. ; Fattibene, P. ; Regulla, D.F. & Wieser, A. Co-ordinated Research Efforts for Establishing an International Radiotherapy Dose Intercomparison Service based on the Alanine/ESR System. Appl. Radiat. Isot. 44, 7-11 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=19688&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=19688&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Nette, H.P.* ; Onori, S.* ; Fattibene, P.* ; Regulla, D.F. & Wieser, A. Coordinated research efforts for establishing an in international radiotherapy dose intercomparison service based on the alanine/ESR system. Appl. Radiat. Isot. 44, IN1-IN2,7-11 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=40238&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=40238&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Regulla, D.F. et al. Calibration Network based on Alanine/ESR Dosimetry?. Appl. Radiat. Isot. 44, 23-31 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=19681&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=19681&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Regulla, D.F. et al. Calibration network based on alanine/ESR dosimetry. Appl. Radiat. Isot. 44, 23-31 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=40252&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=40252&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Wieser, A. ; Lettau, C. ; Fill, U. & Regulla, D.F. The Influence of Non-Radiation Induced ESR Background Signal from Paraffin-Allanine Probes for Dosimetry in the Radiation Therapy Dose Range. Appl. Radiat. Isot. 44, 585-587 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=19673&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=19673&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Wieser, A. et al. ESR and TL dating of travertine from Jordan: Complications in paleodose assessment. Appl. Radiat. Isot. 44, 149-152 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=34073&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=34073&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Wieser, A. ; Lettau, C. ; Fill, U.A. & Regulla, D.F. The influence of non-radiation induced ESR background signal from paraffin-alanine probes for dosimetry in the radiotherapy dose range. Appl. Radiat. Isot. 44, 59-65 (1993)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=40383&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=40383&la=de Fri, 31 Dec 1993 00:00:00 +0000 <![CDATA[Caldas, L.V.E. ; Regulla, D.F. & Pychlau, P. Ionization Chamber Extension Cables: Radiation Effects. Appl. Radiat. Isot. 40, 93-94 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=18919&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=18919&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Caldas, L.V.E. ; Regulla, D.F. & Pychlau, P.J. Ionization chamber extension cables: Radiation effects. Appl. Radiat. Isot. 40, 93-94 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=42058&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=42058&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Chu, S. ; Wieser, A. ; Feist, H. & Regulla, D.F. ESR/Alanine Dosimetry of High-energy Electrons in Radiotherapy. Appl. Radiat. Isot. 40, 993-996 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17920&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17920&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Chu, S. ; Wieser, A. ; Feist, H.W. & Regulla, D.F. ESR/alanine dosimetry of high-energy electrons in radiotherapy. Appl. Radiat. Isot. 40, 993-996 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=41907&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=41907&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Göksu, H.Y. ; Wieser, A. ; Waibel, A. ; Vogenauer, A. & Regulla, D.F. Comparing measurements of free radicals, optical density and thermoluminescence in solids for high-level dosimetry. Appl. Radiat. Isot. 40, 905-909 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=33834&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=33834&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Kotzias, D. & Beyerle-Pfnür, R. Characterization of Humic Substances by ESR Spectroscopy. Appl. Radiat. Isot. 40, 897-899 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17545&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17545&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Kotzias, D. & Beyerle-Pfnür, R. Characterization of humic substances by ESR spectroscopy. Appl. Radiat. Isot. 40, 897-899 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=41804&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=41804&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Miller, A. ; Kovacs, A. ; Wieser, A. & Regulla, D.F. Measurements with Alanine and Film Dosimeters for Industrial 10 MeV Electron Reference Dosimetry. Appl. Radiat. Isot. 40, 967-969 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17924&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17924&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Nam, J.W. & Regulla, D.F. The Significance of the International Dose Assurance Service for Radiation Processing. Appl. Radiat. Isot. 40, 953-955 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17923&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17923&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Özer, A.M. et al. ESR and TL Age Determination of Caliche Nodules. Appl. Radiat. Isot. 40, 1159-1162 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17925&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17925&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Regulla, D.F. & Deffner, U. Dose Estimation by ESR Spectroscopy at a Fatal Radiation Accident. Appl. Radiat. Isot. 40, 1039-1043 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17926&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17926&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Regulla, D.F. & Deffner, U. Dose estimation by ESR spectroscopy at a fatal radiation accident. Appl. Radiat. Isot. 40, 1039-1043 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=41997&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=41997&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Regulla, D.F. ; Scharmann, A.* & McLaughlin, W.L.* Preface. Appl. Radiat. Isot. 40, VII-VIII (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=42671&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=42671&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Schraube, H. ; Weitzenegger, E. ; Wieser, A. & Regulla, D.F. Fast neutron response of alanine probes. Appl. Radiat. Isot. 40, 941-944 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=41202&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=41202&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Wieser, A. & Regulla, D.F. ESR Dosimetry in the "Gigarad" Range. Appl. Radiat. Isot. 40, 911-913 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17921&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17921&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Wieser, A. ; Siegele, R. & Regulla, D.F. Influence of the Irradiation Temperature on the Free-radical Response of Alanine. Appl. Radiat. Isot. 40, 957-959 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17922&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=17922&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Wieser, A. & Regulla, D.F. ESR dosimetry in the 'gigarad' range. Appl. Radiat. Isot. 40, 911-913 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=33842&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=33842&la=de Sun, 31 Dec 1989 00:00:00 +0000 <![CDATA[Wieser, A. ; Siegele, R.N. & Regulla, D.F. Influence of the irradiation temperature on the free-radical response of alanine. Appl. Radiat. Isot. 40, 957-959 (1989)]]> https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=42601&la=de https://push-zb.helmholtz-munich.de/frontdoor.php?source_opus=42601&la=de Sun, 31 Dec 1989 00:00:00 +0000